13643f5b6e
This commit makes the folowing changes: - Add support for the knem single-copy mechanism. Initially vader will only support the synchronous copy mode. Asynchronous copy support may be added int the future. - Improve Linux cross memory attach (CMA) when using restrictive ptrace settings. This will allow Open MPI to use CMA without modifying the system settings to support ptrace attach (see /etc/sysctl.d/10-ptrace.conf). - Allow runtime selection of the single copy mechanism. The default behavior is to use the best available. The priority list of single-copy mehanisms is as follows: xpmem, cma, and knem. - Allow disabling support for kernel-assisted single copy. - Some tuning and bug fixes.
45 строки
1.3 KiB
Bash
45 строки
1.3 KiB
Bash
# -*- shell-script -*-
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#
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# Copyright (c) 2009 The University of Tennessee and The University
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# of Tennessee Research Foundation. All rights
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# reserved.
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# Copyright (c) 2009-2010 Cisco Systems, Inc. All rights reserved.
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# Copyright (c) 2010-2012 IBM Corporation. All rights reserved.
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# Copyright (c) 2014 Los Alamos National Security, LLC. All rights
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# reserved.
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# $COPYRIGHT$
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#
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# Additional copyrights may follow
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#
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# $HEADER$
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#
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# MCA_btl_sm_CONFIG([action-if-can-compile],
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# [action-if-cant-compile])
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# ------------------------------------------------
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AC_DEFUN([MCA_opal_btl_sm_CONFIG],[
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AC_CONFIG_FILES([opal/mca/btl/sm/Makefile])
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OPAL_VAR_SCOPE_PUSH([btl_sm_cma_happy])
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OPAL_CHECK_CMA([btl_sm], [btl_sm_cma_happy=1], [btl_sm_cma_happy=0])
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AC_DEFINE_UNQUOTED([OPAL_BTL_SM_HAVE_CMA],
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[$btl_sm_cma_happy],
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[If CMA support can be enabled])
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OPAL_VAR_SCOPE_POP
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OPAL_VAR_SCOPE_PUSH([btl_sm_knem_happy])
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OPAL_CHECK_KNEM([btl_sm],
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[btl_sm_knem_happy=1],
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[btl_sm_knem_happy=0])
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AC_DEFINE_UNQUOTED([OPAL_BTL_SM_HAVE_KNEM],
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[$btl_sm_knem_happy],
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[If knem support can be enabled])
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[$1]
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# substitute in the things needed to build KNEM
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AC_SUBST([btl_sm_CPPFLAGS])
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OPAL_VAR_SCOPE_POP
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])dnl
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